/Engine/Source/Runtime/Engine/Public/SceneViewExtensionContext.h
Contains theTFunctionthat determines if a scene view extension should be valid in the given context given for the current frame. It also contains Guid to help identify it, given that we can't directly compare TFunctions.
struct FSceneViewExtensionIsActiveFunctor
TSceneViewExten...
IsActiveFunction
This is the lambda function used to determine if the Scene View Extension should be active or not.